| J. G. Blackman | |
| Country: | West Indies |
| Umpire: | true |
| Testsumpired: | 1 |
| Umptestdebutyr: | 1935 |
| Date: | 1 July 2013 |
| Source: | http://www.espncricinfo.com/westindies/content/player/51426.html Cricinfo |
J. G. Blackman was a West Indian cricket umpire. He stood in one Test match, West Indies vs. England, in 1935.[1]